Pearltrees is a place to collect, organize and share everything you like on the web. A pearl holds anything you find interesting on the web. Click it to open it, drag and drop it to move it. A pearltree is a collection of web pages. It works like a folder for pearls. You can open it, close it, browse it, move it into an other pearltree or send it anywhere to share some of your interests. We haven’t played with it yet, but think it looks most useful for us, and for students.